<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Title</title>
    <script src="./lib/vue.js"></script>
</head>
<body>
<!--Vue实例所控制的这个元素区域，就是我们的V-->
<div id="app">
    <input type="button" value="获取元素" @click="getElement" ref="mybtn">
    <h3 id="myh3" ref="myh3">哈哈哈，今天天气太好了！！！</h3>
    <hr>
    <login ref="mylogin"></login>
</div>
<script>
    var login = {
        template: '<h1>登录组件</h1>',
        data() {
            return {
                msg: 'son msg'
            }
        },
        methods:{
            show(){
                console.log('调用了子组件的方法')
            }
        }
    }
    // 创建Vue实例，得到ViewModel
    var vm = new Vue({
        el: '#app',
        data: {},
        methods: {
            getElement() {
                // console.log(document.getElementById('myh3').innerText)
                // console.log(this.$refs.myh3.innerText)
                // console.log(this.$refs.mylogin.msg)
                this.$refs.mylogin.show()
            }
        },
        components: {
            login
        }
    })
</script>
</body>
</html>